wafer-type soft sealing butterfly valve
nominal diameter: dn40 ~ 350mm
nominal pressure: pn0.6 ~ 1.6mpa
temperature: ≤120 ℃
main material: ductile iron, cast , steel, stainless steel
design criteria: gb / t12238-1989, ls0 10631-1994 or bs en593-1998
flange size gb / t17241.6-1998, is0 7005 -2 or
bs en 1092-2002 length of construction: gb / t1 2221-1989, ls0 5752-1988 or bs en558-1
pressure test: gb / t13927-1992, jb / t9092-1999, ls0 5028-1993 or bs 6755- l-1986
wafer soft seal butterfly valve uses and characteristics
soft seal butterfly valve for temperature ≤120 ℃, nominal pressure ≤16mpa food, pharmaceutical, chemical, oil, electricity, alloy, construction, textile, paper and other drainage, gas pipe for regulate flow and shut off media.
the main features of soft butterfly valve seal
1, the design is novel, reasonable, unique structure, light weight, quick opening and closing.
2, torque is small, easy to operate, labor-saving smart.
3, can be installed in any location, easy maintenance.
4, seals can be replaced, sealing performance and reliable two-way seal to achieve zero leakage.
5, sealing material aging resistance, corrosion resistance, long life and other characteristics.
wafer sealing butterfly valve main dimensions and weight (pn1.0 / 1.6mpa)
| dn (mm) | a | b | c | d1 | l | n-φ | k | e | 4-φ1 | φ2 | g | weight wt (kg) |
| 50 | 140 | 80 | 43 | 125 | 32 | 4-19 | 77 | 57.15 | 4-6.7 | 12.6 | 100 | 3.34 |
| 65 | 152 | 89 | 46 | 145 | 32 | 4-19 | 77 | 57.15 | 4-.67 | 12.6 | 120 | 3.94 |
| 80 | 159 | 95 | 45.21 | 160 | 32 | 8-19 | 77 | 57.15 | 4-.67 | 12.6 | 127 | 4.05 |
| 100 | 178 | 114 | 52.07 | 180 | 32 | 8-19 | 92 | 69.85 | 4-10.3 | 15.77 | 156 | 5.48 |
| 125 | 190 | 127 | 55.5 | 210 | 32 | 8-19 | 92 | 69.85 | 4-10.3 | 18.92 | 190 | 7.66 |
| 150 | 203 | 139 | 55.75 | 240 | 32 | 8-23 | 92 | 69.85 | 4-10.3 | 18.92 | 212 | 8.5 |
| 200 | 238 | 175 | 60.58 | 295 | 45 | 8-23 | 115 | 88.9 | 4-14.3 | 22.1 | 268 | 25 |
| 250 | 268 | 203 | 68 | 350 | 45 | 12-23 | 115 | 88.9 | 4-14.3 | 28.45 | 325 | 31.4 |
| 300 | 306 | 242 | 76.9 | 400 | 45 | 12-23 | 140 | 107.95 | 4-14.3 | 31.6 | 403 | 45.9 |
| 350 | 368 | 267 | 76.17 | 460 | 45 | 16-23 | 140 | 107.95 | 4-14.3 | 31.6 | 436 | 54 |